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PROCEEDINGS OF THE NATIONAL MUSEUM. 



VOL. 50. 



clear edge; pectorals with bar completely across base in adults; anals 

 dark, with clear edge; soft dorsal similar; spinous dorsal with usual 

 large black spot on distal and posterior haK; caudal with indications 

 of cross-stripes; in young specimens anal frequently shows traces 

 of obhque stripes. 



Certain very young specimens of this species from Laredo Bay 

 apparently show 5 spines and 34 rays in the dorsal, but are otherwise 

 typical. 



That this is Notothenia cornucola of Richardson and not N. sima 

 is shown conclusively by the characters given for the former. These 

 are: Dorsal rays 32; opercle not completely scaled; obhque cheek 

 stripe distinct; bar across pectoral complete and distinct. Our speci- 

 mens correspond in every detail with the description of the iy^e. 



Notothenia sima differs from this species not only in the characters 

 shown in the key and tables of measurements, but also very greatly 

 in physiognomy, the interorbital space being less strongly arched 

 from side to side and the head apparently less compressed. 



Regan ^ records a small specimen from New Zealand, but this is so 

 contrary to the general distribution of the species of the genus that 

 it is difficult to accept the record, on such meager material at least. 



Steindachner's description of Notothenia modesta seems to fit oiu* 

 specimens closely enough, although he says:^ 



Wegen der stark comprimirten Form der Kopfea und der ausserat geringen Stirn- 

 breite wage icli es nicht, das hier beschriebene Exemplar der Art nach mlt N. cornucola 

 zu vereinigen. 



The range of distribution seems the greatest of the genus in so far 

 as South American members are concerned, as it extends from the 

 Island of Chiloe (43° latitude) on the western coast to the Falkland 

 Islands on the eastern, being recorded many times from Cape Horn 

 and the Straits of Magellan, 



1 Trans. Royal Soc. Edinb., vol. 49, 1913, p. 275. 



2 Fauna Chilensis, p. 302. 



3 Localities: N. cnrnucola: AH from Sandy Point, Straits of Magellan. N. sima: Laredo Bay, Straits of 

 Magellan 02-40, 02-45, 02-48, 02-5, 01-8; Gregory Bay, Straits of Magellan, 01-23, 01-68. 



